Revision as of 23:00, 13 March 2009

Contents

Introduction

Back in the nineties I have had a lot of fun receiving NOAA weather satellites transmitting APT on 137 MHz. Those days I was using a winradio (that I still have) and a sound card based software decoder. Since I have now started to experiment with Category:GNU Radio and also invested in a Category:USRP with various daughterboards, I though it would be interesting to receive NOAA APT again — this time using a decoder done at the SDR layer, i.e. without the need for a sound card decoder.

While this project may seem trivial to a DSP guru, being a newbie in the area I find the challenge to be worthy and a provide a good opportunity to learn using GNU Radio and Software Defined Radios in general.